programs/regedit/edit.c

   1 /*
   2  * Registry editing UI functions.
   3  *
   4  * Copyright (C) 2003 Dimitrie O. Paun
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #define WIN32_LEAN_AND_MEAN     /* Exclude rarely-used stuff from Windows headers */
  22
  23 #include <windows.h>
  24 #include <commctrl.h>
  25 #include <commdlg.h>
  26 #include <cderr.h>
  27 #include <stdlib.h>
  28 #include <stdio.h>
  29 #include <shellapi.h>
  30 #include <shlwapi.h>
  31
  32 #include "wine/heap.h"
  33 #include "wine/unicode.h"
  34 #include "main.h"
  35 #include "regproc.h"
  36 #include "resource.h"
  37
  38 static const WCHAR* editValueName;
  39 static WCHAR* stringValueData;
  40 static BOOL isDecimal;
  41
  42 struct edit_params
  43 {
  44     HKEY    hKey;
  45     LPCWSTR lpszValueName;
  46     void   *pData;
  47     LONG    cbData;
  48 };
  49
  50 static int vmessagebox(HWND hwnd, int buttons, int titleId, int resId, __ms_va_list va_args)
  51 {
  52     WCHAR title[256];
  53     WCHAR fmt[1024];
  54     WCHAR *str;
  55     int ret;
  56
  57     LoadStringW(hInst, titleId, title, COUNT_OF(title));
  58     LoadStringW(hInst, resId, fmt, COUNT_OF(fmt));
  59
  60     FormatMessageW(FORMAT_MESSAGE_FROM_STRING|FORMAT_MESSAGE_ALLOCATE_BUFFER,
  61                    fmt, 0, 0, (WCHAR *)&str, 0, &va_args);
  62     ret = MessageBoxW(hwnd, str, title, buttons);
  63     LocalFree(str);
  64
  65     return ret;
  66 }
  67
  68 int WINAPIV messagebox(HWND hwnd, int buttons, int titleId, int resId, ...)
  69 {
  70     __ms_va_list ap;
  71     INT result;
  72
  73     __ms_va_start(ap, resId);
  74     result = vmessagebox(hwnd, buttons, titleId, resId, ap);
  75     __ms_va_end(ap);
  76
  77     return result;
  78 }
  79
  80 static void WINAPIV error_code_messagebox(HWND hwnd, unsigned int msg_id, ...)
  81 {
  82     __ms_va_list ap;
  83
  84     __ms_va_start(ap, msg_id);
  85     vmessagebox(hwnd, MB_OK|MB_ICONERROR, IDS_ERROR, msg_id, ap);
  86     __ms_va_end(ap);
  87 }
  88
  89 static BOOL change_dword_base(HWND hwndDlg, BOOL toHex)
  90 {
  91     static const WCHAR percent_u[] = {'%','u',0};
  92     static const WCHAR percent_x[] = {'%','x',0};
  93
  94     WCHAR buf[128];
  95     DWORD val;
  96
  97     if (!GetDlgItemTextW(hwndDlg, IDC_VALUE_DATA, buf, COUNT_OF(buf))) return FALSE;
  98     if (!swscanf(buf, toHex ? percent_u : percent_x, &val)) return FALSE;
  99     wsprintfW(buf, toHex ? percent_x : percent_u, val);
 100     return SetDlgItemTextW(hwndDlg, IDC_VALUE_DATA, buf);
 101 }
 102
 103 static INT_PTR CALLBACK modify_dlgproc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)
 104 {
 105     HWND hwndValue;
 106     int len;
 107
 108     switch(uMsg) {
 109     case WM_INITDIALOG:
 110         SetDlgItemTextW(hwndDlg, IDC_VALUE_NAME, editValueName);
 111         SetDlgItemTextW(hwndDlg, IDC_VALUE_DATA, stringValueData);
 112         CheckRadioButton(hwndDlg, IDC_DWORD_HEX, IDC_DWORD_DEC, isDecimal ? IDC_DWORD_DEC : IDC_DWORD_HEX);
 113         return TRUE;
 114     case WM_COMMAND:
 115         switch (LOWORD(wParam)) {
 116         case IDC_DWORD_HEX:
 117             if (isDecimal && change_dword_base(hwndDlg, TRUE)) isDecimal = FALSE;
 118         break;
 119         case IDC_DWORD_DEC:
 120             if (!isDecimal && change_dword_base(hwndDlg, FALSE)) isDecimal = TRUE;
 121         break;
 122         case IDOK:
 123             if ((hwndValue = GetDlgItem(hwndDlg, IDC_VALUE_DATA))) {
 124                 len = GetWindowTextLengthW(hwndValue);
 125                 stringValueData = heap_xrealloc(stringValueData, (len + 1) * sizeof(WCHAR));
 126                 if (!GetWindowTextW(hwndValue, stringValueData, len + 1))
 127                     *stringValueData = 0;
 128                 }
 129             /* Fall through */
 130         case IDCANCEL:
 131             EndDialog(hwndDlg, wParam);
 132             return TRUE;
 133         }
 134     }
 135     return FALSE;
 136 }
 137
 138 static INT_PTR CALLBACK bin_modify_dlgproc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)
 139 {
 140     struct edit_params *params;
 141     LPBYTE pData;
 142     LONG cbData;
 143     LONG lRet;
 144
 145     switch(uMsg) {
 146     case WM_INITDIALOG:
 147         params = (struct edit_params *)lParam;
 148         SetWindowLongPtrW(hwndDlg, DWLP_USER, (ULONG_PTR)params);
 149         if (params->lpszValueName)
 150             SetDlgItemTextW(hwndDlg, IDC_VALUE_NAME, params->lpszValueName);
 151         else
 152             SetDlgItemTextW(hwndDlg, IDC_VALUE_NAME, g_pszDefaultValueName);
 153         SendDlgItemMessageW(hwndDlg, IDC_VALUE_DATA, HEM_SETDATA, (WPARAM)params->cbData, (LPARAM)params->pData);
 154         return TRUE;
 155     case WM_COMMAND:
 156         switch (LOWORD(wParam)) {
 157         case IDOK:
 158             params = (struct edit_params *)GetWindowLongPtrW(hwndDlg, DWLP_USER);
 159             cbData = SendDlgItemMessageW(hwndDlg, IDC_VALUE_DATA, HEM_GETDATA, 0, 0);
 160             pData = heap_xalloc(cbData);
 161
 162             if (pData)
 163             {
 164                 SendDlgItemMessageW(hwndDlg, IDC_VALUE_DATA, HEM_GETDATA, (WPARAM)cbData, (LPARAM)pData);
 165                 lRet = RegSetValueExW(params->hKey, params->lpszValueName, 0, REG_BINARY, pData, cbData);
 166                 heap_free(pData);
 167             }
 168             else
 169                 lRet = ERROR_OUTOFMEMORY;
 170
 171             if (lRet == ERROR_SUCCESS)
 172                 EndDialog(hwndDlg, 1);
 173             else
 174             {
 175                 error_code_messagebox(hwndDlg, IDS_SET_VALUE_FAILED);
 176                 EndDialog(hwndDlg, 0);
 177             }
 178             return TRUE;
 179         case IDCANCEL:
 180             EndDialog(hwndDlg, 0);
 181             return TRUE;
 182         }
 183     }
 184     return FALSE;
 185 }
 186
 187 static BOOL check_value(HWND hwnd, HKEY hKey, LPCWSTR valueName)
 188 {
 189     WCHAR empty = 0;
 190     LONG lRet = RegQueryValueExW(hKey, valueName ? valueName : &empty, 0, NULL, 0, NULL);
 191     if(lRet != ERROR_SUCCESS) return FALSE;
 192     return TRUE;
 193 }
 194
 195 static LPWSTR read_value(HWND hwnd, HKEY hKey, LPCWSTR valueName, DWORD *lpType, LONG *len)
 196 {
 197     DWORD valueDataLen;
 198     LPWSTR buffer = NULL;
 199     LONG lRet;
 200         WCHAR empty = 0;
 201
 202     lRet = RegQueryValueExW(hKey, valueName ? valueName : &empty, 0, lpType, 0, &valueDataLen);
 203     if (lRet != ERROR_SUCCESS) {
 204         if (lRet == ERROR_FILE_NOT_FOUND && !valueName) { /* no default value here, make it up */
 205             if (len) *len = 1;
 206             if (lpType) *lpType = REG_SZ;
 207             buffer = heap_xalloc(sizeof(WCHAR));
 208             *buffer = '\0';
 209             return buffer;
 210         }
 211         error_code_messagebox(hwnd, IDS_BAD_VALUE, valueName);
 212         goto done;
 213     }
 214     if ( *lpType == REG_DWORD ) valueDataLen = sizeof(DWORD);
 215     buffer = heap_xalloc(valueDataLen + sizeof(WCHAR));
 216     lRet = RegQueryValueExW(hKey, valueName, 0, 0, (LPBYTE)buffer, &valueDataLen);
 217     if (lRet != ERROR_SUCCESS) {
 218         error_code_messagebox(hwnd, IDS_BAD_VALUE, valueName);
 219         goto done;
 220     }
 221     if((valueDataLen % sizeof(WCHAR)) == 0)
 222         buffer[valueDataLen / sizeof(WCHAR)] = 0;
 223     if(len) *len = valueDataLen;
 224     return buffer;
 225
 226 done:
 227     heap_free(buffer);
 228     return NULL;
 229 }
 230
 231 BOOL CreateKey(HWND hwnd, HKEY hKeyRoot, LPCWSTR keyPath, LPWSTR keyName)
 232 {
 233     BOOL result = FALSE;
 234     LONG lRet = ERROR_SUCCESS;
 235     HKEY retKey = NULL;
 236     WCHAR newKey[MAX_NEW_KEY_LEN - 4];
 237     int keyNum;
 238     HKEY hKey;
 239
 240     lRet = RegOpenKeyExW(hKeyRoot, keyPath, 0, KEY_CREATE_SUB_KEY, &hKey);
 241     if (lRet != ERROR_SUCCESS) {
 242         error_code_messagebox(hwnd, IDS_CREATE_KEY_FAILED);
 243         goto done;
 244     }
 245
 246     if (!LoadStringW(GetModuleHandleW(0), IDS_NEWKEY, newKey, COUNT_OF(newKey))) goto done;
 247
 248     /* try to find a name for the key being created (maximum = 100 attempts) */
 249     for (keyNum = 1; keyNum < 100; keyNum++) {
 250         wsprintfW(keyName, newKey, keyNum);
 251         lRet = RegOpenKeyW(hKey, keyName, &retKey);
 252         if (lRet != ERROR_SUCCESS) break;
 253         RegCloseKey(retKey);
 254     }
 255     if (lRet == ERROR_SUCCESS) goto done;
 256
 257     lRet = RegCreateKeyW(hKey, keyName, &retKey);
 258     if (lRet != ERROR_SUCCESS) {
 259         error_code_messagebox(hwnd, IDS_CREATE_KEY_FAILED);
 260         goto done;
 261     }
 262
 263     result = TRUE;
 264
 265 done:
 266     RegCloseKey(retKey);
 267     return result;
 268 }
 269
 270 BOOL ModifyValue(HWND hwnd, HKEY hKeyRoot, LPCWSTR keyPath, LPCWSTR valueName)
 271 {
 272     BOOL result = FALSE;
 273     DWORD type;
 274     LONG lRet;
 275     HKEY hKey;
 276     LONG len;
 277
 278     lRet = RegOpenKeyExW(hKeyRoot, keyPath, 0, KEY_READ | KEY_SET_VALUE, &hKey);
 279     if (lRet != ERROR_SUCCESS) {
 280         error_code_messagebox(hwnd, IDS_SET_VALUE_FAILED);
 281         return FALSE;
 282     }
 283
 284     editValueName = valueName ? valueName : g_pszDefaultValueName;
 285     if(!(stringValueData = read_value(hwnd, hKey, valueName, &type, &len))) goto done;
 286
 287     if ( (type == REG_SZ) || (type == REG_EXPAND_SZ) ) {
 288         if (DialogBoxW(0, MAKEINTRESOURCEW(IDD_EDIT_STRING), hwnd, modify_dlgproc) == IDOK) {
 289             lRet = RegSetValueExW(hKey, valueName, 0, type, (LPBYTE)stringValueData, (lstrlenW(stringValueData) + 1) * sizeof(WCHAR));
 290             if (lRet == ERROR_SUCCESS) result = TRUE;
 291             else error_code_messagebox(hwnd, IDS_SET_VALUE_FAILED);
 292         }
 293     } else if ( type == REG_DWORD ) {
 294         const WCHAR u[] = {'%','u',0};
 295         const WCHAR x[] = {'%','x',0};
 296         wsprintfW(stringValueData, isDecimal ? u : x, *((DWORD*)stringValueData));
 297         if (DialogBoxW(0, MAKEINTRESOURCEW(IDD_EDIT_DWORD), hwnd, modify_dlgproc) == IDOK) {
 298             DWORD val;
 299             CHAR* valueA = GetMultiByteString(stringValueData);
 300             if (sscanf(valueA, isDecimal ? "%u" : "%x", &val)) {
 301                 lRet = RegSetValueExW(hKey, valueName, 0, type, (BYTE*)&val, sizeof(val));
 302                 if (lRet == ERROR_SUCCESS) result = TRUE;
 303                 else error_code_messagebox(hwnd, IDS_SET_VALUE_FAILED);
 304             }
 305             heap_free(valueA);
 306         }
 307     } else if ( type == REG_MULTI_SZ ) {
 308         WCHAR char1 = '\r', char2 = '\n';
 309         WCHAR *tmpValueData = NULL;
 310         INT i, j, count;
 311
 312         for ( i = 0, count = 0; i < len - 1; i++)
 313             if ( !stringValueData[i] && stringValueData[i + 1] )
 314                 count++;
 315         tmpValueData = heap_xalloc((len + count) * sizeof(WCHAR));
 316
 317         for ( i = 0, j = 0; i < len - 1; i++)
 318         {
 319             if ( !stringValueData[i] && stringValueData[i + 1])
 320             {
 321                 tmpValueData[j++] = char1;
 322                 tmpValueData[j++] = char2;
 323             }
 324             else
 325                 tmpValueData[j++] = stringValueData[i];
 326         }
 327         tmpValueData[j] = stringValueData[i];
 328         heap_free(stringValueData);
 329         stringValueData = tmpValueData;
 330         tmpValueData = NULL;
 331
 332         if (DialogBoxW(0, MAKEINTRESOURCEW(IDD_EDIT_MULTI_STRING), hwnd, modify_dlgproc) == IDOK)
 333         {
 334             len = lstrlenW( stringValueData );
 335             tmpValueData = heap_xalloc((len + 2) * sizeof(WCHAR));
 336
 337             for ( i = 0, j = 0; i < len - 1; i++)
 338             {
 339                 if ( stringValueData[i] == char1 && stringValueData[i + 1] == char2)
 340                 {
 341                     if ( tmpValueData[j - 1] != 0)
 342                         tmpValueData[j++] = 0;
 343                     i++;
 344                 }
 345                 else
 346                     tmpValueData[j++] = stringValueData[i];
 347             }
 348             tmpValueData[j++] = stringValueData[i];
 349             tmpValueData[j++] = 0;
 350             tmpValueData[j++] = 0;
 351             heap_free(stringValueData);
 352             stringValueData = tmpValueData;
 353
 354             lRet = RegSetValueExW(hKey, valueName, 0, type, (LPBYTE)stringValueData, j * sizeof(WCHAR));
 355             if (lRet == ERROR_SUCCESS) result = TRUE;
 356             else error_code_messagebox(hwnd, IDS_SET_VALUE_FAILED);
 357         }
 358     }
 359     else /* hex data types */
 360     {
 361         struct edit_params params;
 362
 363         params.hKey = hKey;
 364         params.lpszValueName = valueName;
 365         params.pData = stringValueData;
 366         params.cbData = len;
 367         result = DialogBoxParamW(NULL, MAKEINTRESOURCEW(IDD_EDIT_BINARY), hwnd,
 368                                  bin_modify_dlgproc, (LPARAM)&params);
 369     }
 370
 371     /* Update the listview item with the new data string */
 372     if (result)
 373     {
 374         int index = SendMessageW(g_pChildWnd->hListWnd, LVM_GETNEXTITEM, -1,
 375                                  MAKELPARAM(LVNI_FOCUSED | LVNI_SELECTED, 0));
 376         heap_free(stringValueData);
 377         stringValueData = read_value(hwnd, hKey, valueName, &type, &len);
 378         format_value_data(g_pChildWnd->hListWnd, index, type, stringValueData, len);
 379     }
 380
 381 done:
 382     heap_free(stringValueData);
 383     stringValueData = NULL;
 384     RegCloseKey(hKey);
 385     return result;
 386 }
 387
 388 BOOL DeleteKey(HWND hwnd, HKEY hKeyRoot, LPCWSTR keyPath)
 389 {
 390     BOOL result = FALSE;
 391     LONG lRet;
 392     HKEY hKey;
 393
 394     lRet = RegOpenKeyExW(hKeyRoot, keyPath, 0, KEY_READ|KEY_SET_VALUE, &hKey);
 395     if (lRet != ERROR_SUCCESS) {
 396         error_code_messagebox(hwnd, IDS_DELETE_KEY_FAILED);
 397         return FALSE;
 398     }
 399
 400     if (messagebox(hwnd, MB_YESNO | MB_ICONEXCLAMATION, IDS_DELETE_KEY_TITLE,
 401                    IDS_DELETE_KEY_TEXT) != IDYES)
 402         goto done;
 403
 404     lRet = SHDeleteKeyW(hKeyRoot, keyPath);
 405     if (lRet != ERROR_SUCCESS) {
 406         error_code_messagebox(hwnd, IDS_BAD_KEY, keyPath);
 407         goto done;
 408     }
 409     result = TRUE;
 410
 411 done:
 412     RegCloseKey(hKey);
 413     return result;
 414 }
 415
 416 BOOL DeleteValue(HWND hwnd, HKEY hKeyRoot, LPCWSTR keyPath, LPCWSTR valueName, BOOL showMessageBox)
 417 {
 418     BOOL result = FALSE;
 419     LONG lRet;
 420     HKEY hKey;
 421     LPCWSTR visibleValueName = valueName ? valueName : g_pszDefaultValueName;
 422     WCHAR empty = 0;
 423
 424     lRet = RegOpenKeyExW(hKeyRoot, keyPath, 0, KEY_READ | KEY_SET_VALUE, &hKey);
 425     if (lRet != ERROR_SUCCESS) return FALSE;
 426
 427     if (showMessageBox)
 428     {
 429         if (messagebox(hwnd, MB_YESNO | MB_ICONEXCLAMATION, IDS_DELETE_VALUE_TITLE, IDS_DELETE_VALUE_TEXT,
 430                 visibleValueName) != IDYES)
 431             goto done;
 432     }
 433
 434     lRet = RegDeleteValueW(hKey, valueName ? valueName : &empty);
 435     if (lRet != ERROR_SUCCESS && valueName) {
 436         error_code_messagebox(hwnd, IDS_BAD_VALUE, valueName);
 437     }
 438     if (lRet != ERROR_SUCCESS) goto done;
 439     result = TRUE;
 440
 441 done:
 442     RegCloseKey(hKey);
 443     return result;
 444 }
 445
 446 BOOL CreateValue(HWND hwnd, HKEY hKeyRoot, LPCWSTR keyPath, DWORD valueType, LPWSTR valueName)
 447 {
 448     LONG lRet = ERROR_SUCCESS;
 449     WCHAR newValue[256];
 450     DWORD valueDword = 0;
 451     BOOL result = FALSE;
 452     int valueNum, index;
 453     HKEY hKey;
 454     LVITEMW item;
 455
 456     lRet = RegOpenKeyExW(hKeyRoot, keyPath, 0, KEY_READ | KEY_SET_VALUE, &hKey);
 457     if (lRet != ERROR_SUCCESS) {
 458         error_code_messagebox(hwnd, IDS_CREATE_VALUE_FAILED);
 459         return FALSE;
 460     }
 461
 462     if (!LoadStringW(GetModuleHandleW(0), IDS_NEWVALUE, newValue, COUNT_OF(newValue))) goto done;
 463
 464     /* try to find a name for the value being created (maximum = 100 attempts) */
 465     for (valueNum = 1; valueNum < 100; valueNum++) {
 466         wsprintfW(valueName, newValue, valueNum);
 467         lRet = RegQueryValueExW(hKey, valueName, 0, 0, 0, 0);
 468         if (lRet == ERROR_FILE_NOT_FOUND) break;
 469     }
 470     if (lRet != ERROR_FILE_NOT_FOUND) {
 471         error_code_messagebox(hwnd, IDS_CREATE_VALUE_FAILED);
 472         goto done;
 473     }
 474
 475     lRet = RegSetValueExW(hKey, valueName, 0, valueType, (BYTE*)&valueDword, sizeof(DWORD));
 476     if (lRet != ERROR_SUCCESS) {
 477         error_code_messagebox(hwnd, IDS_CREATE_VALUE_FAILED);
 478         goto done;
 479     }
 480
 481     /* Add the new item to the listview */
 482     index = AddEntryToList(g_pChildWnd->hListWnd, valueName, valueType,
 483                            (BYTE *)&valueDword, sizeof(DWORD), -1);
 484     item.state = LVIS_FOCUSED | LVIS_SELECTED;
 485     item.stateMask = LVIS_FOCUSED | LVIS_SELECTED;
 486     SendMessageW(g_pChildWnd->hListWnd, LVM_SETITEMSTATE, index, (LPARAM)&item);
 487
 488     result = TRUE;
 489
 490 done:
 491     RegCloseKey(hKey);
 492     return result;
 493 }
 494
 495 BOOL RenameValue(HWND hwnd, HKEY hKeyRoot, LPCWSTR keyPath, LPCWSTR oldName, LPCWSTR newName)
 496 {
 497     LPWSTR value = NULL;
 498     DWORD type;
 499     LONG len, lRet;
 500     BOOL result = FALSE;
 501     HKEY hKey;
 502
 503     if (!oldName) return FALSE;
 504     if (!newName) return FALSE;
 505
 506     lRet = RegOpenKeyExW(hKeyRoot, keyPath, 0, KEY_READ | KEY_SET_VALUE, &hKey);
 507     if (lRet != ERROR_SUCCESS) {
 508         error_code_messagebox(hwnd, IDS_RENAME_VALUE_FAILED);
 509         return FALSE;
 510     }
 511     /* check if the value already exists */
 512     if (check_value(hwnd, hKey, newName)) {
 513         error_code_messagebox(hwnd, IDS_VALUE_EXISTS, oldName);
 514         goto done;
 515     }
 516     value = read_value(hwnd, hKey, oldName, &type, &len);
 517     if(!value) goto done;
 518     lRet = RegSetValueExW(hKey, newName, 0, type, (BYTE*)value, len);
 519     if (lRet != ERROR_SUCCESS) {
 520         error_code_messagebox(hwnd, IDS_RENAME_VALUE_FAILED);
 521         goto done;
 522     }
 523     lRet = RegDeleteValueW(hKey, oldName);
 524     if (lRet != ERROR_SUCCESS) {
 525         RegDeleteValueW(hKey, newName);
 526         error_code_messagebox(hwnd, IDS_RENAME_VALUE_FAILED);
 527         goto done;
 528     }
 529     result = TRUE;
 530
 531 done:
 532     heap_free(value);
 533     RegCloseKey(hKey);
 534     return result;
 535 }
 536
 537
 538 BOOL RenameKey(HWND hwnd, HKEY hRootKey, LPCWSTR keyPath, LPCWSTR newName)
 539 {
 540     LPWSTR parentPath = 0;
 541     LPCWSTR srcSubKey = 0;
 542     HKEY parentKey = 0;
 543     HKEY destKey = 0;
 544     BOOL result = FALSE;
 545     LONG lRet;
 546     DWORD disposition;
 547
 548     if (!keyPath || !newName) return FALSE;
 549
 550     if (!strrchrW(keyPath, '\\')) {
 551         parentKey = hRootKey;
 552         srcSubKey = keyPath;
 553     } else {
 554         LPWSTR srcSubKey_copy;
 555
 556         parentPath = heap_xalloc((lstrlenW(keyPath) + 1) * sizeof(WCHAR));
 557         lstrcpyW(parentPath, keyPath);
 558         srcSubKey_copy = strrchrW(parentPath, '\\');
 559         *srcSubKey_copy = 0;
 560         srcSubKey = srcSubKey_copy + 1;
 561         lRet = RegOpenKeyExW(hRootKey, parentPath, 0, KEY_READ | KEY_CREATE_SUB_KEY, &parentKey);
 562         if (lRet != ERROR_SUCCESS) {
 563             error_code_messagebox(hwnd, IDS_RENAME_KEY_FAILED);
 564             goto done;
 565         }
 566     }
 567
 568     /* The following fails if the old name is the same as the new name. */
 569     if (!lstrcmpW(srcSubKey, newName)) goto done;
 570
 571     lRet = RegCreateKeyExW(parentKey, newName, 0, NULL, REG_OPTION_NON_VOLATILE,
 572         KEY_WRITE, NULL /* FIXME */, &destKey, &disposition);
 573     if (disposition == REG_OPENED_EXISTING_KEY)
 574         lRet = ERROR_FILE_EXISTS;
 575     if (lRet != ERROR_SUCCESS) {
 576         error_code_messagebox(hwnd, IDS_KEY_EXISTS, srcSubKey);
 577         goto done;
 578     }
 579
 580     /* FIXME: SHCopyKey does not copy the security attributes */
 581     lRet = SHCopyKeyW(parentKey, srcSubKey, destKey, 0);
 582     if (lRet != ERROR_SUCCESS) {
 583         RegCloseKey(destKey);
 584         RegDeleteKeyW(parentKey, newName);
 585         error_code_messagebox(hwnd, IDS_RENAME_KEY_FAILED);
 586         goto done;
 587     }
 588
 589     lRet = SHDeleteKeyW(hRootKey, keyPath);
 590     if (lRet != ERROR_SUCCESS) {
 591         error_code_messagebox(hwnd, IDS_RENAME_KEY_FAILED);
 592         goto done;
 593     }
 594
 595     result = TRUE;
 596
 597 done:
 598     RegCloseKey(destKey);
 599     if (parentKey) {
 600         RegCloseKey(parentKey);
 601         heap_free(parentPath);
 602     }
 603     return result;
 604 }